City of Gold by Len Deighton

'A superb example of Deighton's craft' Robert Harris
January 1942. Rommel's troops are at the gates of Egypt, soon to threaten Cairo itself. A spy has been leaking British secrets to the German commander, and Captain Albert Cutler has been sent to find them amongst the city's teeming streets and bazaars, before it is too late. But Cutler is not quite what he seems, and Cairo is a city of fool's gold, where nothing can be taken at face value.
'The pace of the story is compulsive ... it is a real pleasure to be swallowed up in Deighton's descriptions of wartime Cairo' Daily Telegraph
'A novel reminiscent in spirit to Casablanca. Play it again, Len' Kirkus Reviews